dismutationn.

/dɪsmjuːˈteɪʃən/

Etymology: dis- prefix.

Chemistry and Biochemistry.

Disproportionation: usually, disproportionation involving the simultaneous oxidation and reduction of a compound in a biological context.

ΚΠ

1926 Chem. Abstr. 20 929 The great biological significance of dismutation instead of simple oxidation is emphasised.

1938 Nature 4 June 992/1 The principle of the hydrogen shift (dismutation), which governs the mechanism of alcoholic fermentation, has been carefully studied.

1954 New Biol. 16 65 The semiquinones probably disappear by dismutation into quinone and quinol.

1970 R. W. McGilvery Biochemistry xiv. 270 Reactions such as this in which the oxidation of half of the substrate is counterbalanced by reduction of the other half are called dismutations.

Derivatives

diˈsmute v. [as a back-formation] (intransitive) to undergo dismutation.

ΚΠ

1947 Sci. News 5 91 In neutral or slightly acid soils, tervalent manganese..dismutes forming manganese dioxide and bivalent manganese.

1957 G. E. Hutchinson Treat. Limnol. I. xv. 802 This material dismutes, the reaction being equivalent to Mn₂O₃→MnO₂ + MnO.

This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).

单词	dismutation
释义	dismutationn. /dɪsmjuːˈteɪʃən/ Etymology: dis- prefix. Chemistry and Biochemistry. Disproportionation: usually, disproportionation involving the simultaneous oxidation and reduction of a compound in a biological context. ΚΠ 1926 Chem. Abstr. 20 929 The great biological significance of dismutation instead of simple oxidation is emphasised. 1938 Nature 4 June 992/1 The principle of the hydrogen shift (dismutation), which governs the mechanism of alcoholic fermentation, has been carefully studied. 1954 New Biol. 16 65 The semiquinones probably disappear by dismutation into quinone and quinol. 1970 R. W. McGilvery Biochemistry xiv. 270 Reactions such as this in which the oxidation of half of the substrate is counterbalanced by reduction of the other half are called dismutations. Derivatives diˈsmute v. [as a back-formation] (intransitive) to undergo dismutation. ΚΠ 1947 Sci. News 5 91 In neutral or slightly acid soils, tervalent manganese..dismutes forming manganese dioxide and bivalent manganese. 1957 G. E. Hutchinson Treat. Limnol. I. xv. 802 This material dismutes, the reaction being equivalent to Mn₂O₃→MnO₂ + MnO. This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018). < n.1926
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